Stadium: Court 2 Round: 24 Ground: Hardcourt outdoor
| ITF Korea F5 | 2018/08/20 01:00 | Seoung Hun Lee v Dong Ju Kim | 6-1,6-1 |
| ITF Korea F5 | 2018/08/19 02:00 | Woobin Shin v Dong Ju Kim | 1-6,1-6 |
| ITF Korea F3 Qual | 2018/06/16 02:00 | Ilsang Yoon v Dong Ju Kim | 6-2,6-2 |
| Challenger Busan Qual | 2018/05/12 01:00 | Dong Ju Kim v Tae-Woo Lee | 4-6,4-6 |
| Challenger Gimcheon Qual | 2018/05/05 06:00 | Young Seok Kim v Dong Ju Kim | 6-1,6-3 |
| Challenger Seoul Qual | 2018/04/28 01:30 | Sanhui Shin v Dong Ju Kim | 6-4,6-4 |
| ITF Korea F5 | 2017/06/28 04:40 | Dong Ju Kim v Hyun-Woo Nam | 0-6,4-6 |
| ITF Korea F5 | 2017/06/27 01:30 | Sungbeen Sim v Dong Ju Kim | 3-6,6-3,2-6 |
| ITF Korea F6 | 2018/08/29 03:00 | Jeamoon Lee v Seon Yong Han | 4-6,6-4,6-7 |
| ITF Korea F3 | 2018/06/21 01:00 | Ji Sung Nam v Jeamoon Lee | 7-5,6-3 |
| ITF Korea F3 | 2018/06/19 07:00 | Ji Hoon Son v Jeamoon Lee | 3-6,4-6 |
| ITF Korea F2 | 2018/06/14 01:00 | Jeamoon Lee v Ji Sung Nam | 2-6,0-6 |
| ITF Korea F2 | 2018/06/13 06:05 | Yu Hsiang Chiu v Jeamoon Lee | 4-6,4-6 |
| ITF Korea F1 | 2018/06/10 03:00 | Yong-Kyu Lim v Jeamoon Lee | 6-4,7-6 |
| ITF Korea F1 | 2018/06/09 02:35 | Takuto Niki v Jeamoon Lee | 3-6,6-4,4-6 |
| ITF Korea F1 | 2018/06/08 02:00 | Jeamoon Lee v Young-Hoon Jeong | 6-1,6-4 |